Move the pointer over the triad arrows
to display the drag/rotate pointer
. Right-click to rotate
the triad, which changes the direction of bend. Left-click to reposition
the triad.
Move the pointer over the trim plane manipulators
to display the move pointer 
. Drag the manipulators to
position the trim planes.
Move the pointer over the edge of the trim
planes to display the bending pointer 
. Drag the trim planes to modify the flex feature.
Result of Bending